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DC Field | Value | Language |
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dc.contributor.author | Huang, Y | - |
dc.date.accessioned | 2017-09-22T14:43:17Z | - |
dc.date.available | 2017-08-01 | - |
dc.date.available | 2017-09-22T14:43:17Z | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | IOP Conference Series: Materials Science and Engineering, 2017, 219 (1) | en_US |
dc.identifier.issn | 1757-8981 | - |
dc.identifier.issn | 1757-899X | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/15189 | - |
dc.description.abstract | © Published under licence by IOP Publishing Ltd. Steady state deformation has been characterized based on the experimental results for dilute single-phase aluminium alloys. It was found that although characteristic properties such as flow stress and grain size remained constant with time, a continuous loss of grain boundaries occurred as an essential feature at steady state. A physical model, which takes into account the activity of grain boundary dislocations, was developed to describe the kinetics of steady state deformation. According to this model, the steady state as a function of strain rate and temperature defines the limit of the conventional grain size and strength relationship, i.e., the Hall-Petch relation holds when the grain size is larger than that at the steady state, and an inverse Hall-Petch relation takes over if grain size is smaller than the steady state value. The transition between the two relationships relating grain size and strength is a phenomenon that depends on deformation conditions, rather than an intrinsic property as generally perceived. A general scale law of deformation is established accordingly. | en_US |
dc.description.sponsorship | Financial support from EPSRC LiME Hub (UK) is gratefully acknowledged. | en_US |
dc.language.iso | en | en_US |
dc.title | Steady state and a general scale law of deformation | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1088/1757-899X/219/1/012029 | - |
dc.relation.isPartOf | IOP Conference Series: Materials Science and Engineering | - |
pubs.issue | 1 | - |
pubs.publication-status | Published | - |
pubs.volume | 219 | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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Fulltext.pdf | 622.39 kB | Adobe PDF | View/Open |
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